Discussion: Can/should we be able to import a dataspiced dataset from the web/elsewhere?

This comes from a good question in my dataspice demo today: If user X authors a dataspice page for their dataset, and another scientist, Y, wants to use it, it'd be cool if they just ran:

import_spice("https://amoeba.github.io/some-dataset")

And their computer downloaded something like some-dataset.zip which had the dataspice.json and the files described in access.csv attached to it somehow.